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Finding the Fourth Proportional to 354,246.60, 531,369.90 and 299,134.20

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Solution

The fourth proportional to 354,246.60, 531,369.90 and 299,134.20 is: 448,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,246.60 : 531,369.90 = 299,134.20 : x
  2. Step 2: Convert to fraction form
    354,246.60/531,369.90 = 299,134.20/x
  3. Step 3: Cross multiply
    354,246.60x = 531,369.90 × 299,134.20
  4. Step 4: Simplify right side
    354,246.60x = 158,950,909,940.58
  5. Step 5: Solve for x
    x = 158,950,909,940.58/354,246.60
  6. Step 6: Final answer
    x = 448,701.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.